
Draw a line to divide the shapes into halves.


Important Points to Remember in Chapter -1 - Shapes and Designs from Asit Das Gupta Junior Maths 3 Solutions
(i) Shape is a figure with a closed boundary.
(ii) Different kinds of shapes are Squares, Rectangles, Triangles and Circles.
(iii) A triangle is a closed figure made up of three straight edges.
(iv) A square is a closed figure made up of four equal straight edges.
(v) A rectangle is a closed figure made up of four straight edges with opposite edges of equal length.
(vi) A circle is a closed figure made up of one curved edge.
2. Edge and Corner of a Shape:
(i) Edge of a shape is part of its boundary, the line segment or curve joining the two corners.
(ii) Corner of a shape is a point where its straight edges meet.
3. Straight and Curved edges:
(i) A straight edge of a shape is the part of its boundary along a straight line.
(ii) A curved edge of a shape is the part of its boundary along a curve.
4. Tangrams:
Tangram is a puzzle consisting of or shapes that can be used to form shapes of animals, people etc.